I've been playing with 2017 and I was initially concerned about the stability of 2017, but I've been using it past 2 days and no crashes yet and is stable. I love the separate monitor preview! Very Handy. I am on an Asus G750JS with 64 gig memory and a 500 gig SSD that I use for HF caches.. it seems pretty fast.
All the new color correction tools are very nice as well.. And the Export tab functionality is much nicer with the ability to set up a queue. Really nice and heading in right direction!